Topgunz - air to air upgrade

TBatt

I'm running stock gearing and what I have noticed is that the SC starts to build boost at about 3Krpm. When cruising at ~80mph the BOV flutters a little and the boost gauge is showing 0psi which means that the SC is supplying more air than the engine needs at 3Krpm. So, if you drive mildly and shift before 3K you won't notice much difference with the exception of the ECUTEC tune which gives you a hyper throttle response (which makes the car feel much more responsive to the throttle). So if you want to go fast make sure you are in the upper rpm range where the SC can push some air. I have also noticed that the rpm drops by 1.5K rpm from each gear change so if you are shifting at redline your next gear up the engine will be right at 6K which is still making a lot of HP.

Anyway you look at it BOOST will put a big grin on your face and lay some rubber on the road!

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RJM pedal, Hotchkis Sway Bars, FI TDX, FOG Light, Z1 Slotted Drilled rotors, Stillen SC, Quaife ATB, Z1 Oil cooler, AEM Gauge Set, Galeforce gauge mount, Avant Garde M590 Hypersilver w/RE-11, TopgunZ A2A kit., ECUtek tuned by Seb: ROLL TIDE!

TopgunZ

Get the Si trim on the supercharger and then make an additional 35whp.

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ROTREX SUPERCHARGER TUNER KITS - $6799/ CUSTOM STILLEN AIR TO AIR KITS -$2100/ 700+ WHP!! WWW.TOPGUNSPEEDWORKS.COM

Jayhovah

This behavior is not really specific to SC.... In fact, staying out of boost is even easier in a turbo application (hence the existence of turbo lag)...

In the general case with this type of SC:
SC will make boost sooner, but will only make full boost at the top of the rev range
Turbo will start making boost later, but make full boost much earlier in the rev range.

All else being equal...If the goal is to be able to granny around town without boosting until you push down on the pedal, turbo is probably the way to go. All else, however, is rarely equal. =)

Every now and again I attempt to spend an entire tank driving like an old lady just to prove to myself that the car is still capable of achieving its OEM spec gas mileage (it does!).

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2013 Gun Metallic Sport - Gamma V3 Twin Turbogized
DIY Gamma V3 TT Install * Jayhovah's Gamma V3 TT Install Pic'Z and Vid'Z * DIY: Washer Reservoir for the Boosted

brucelidat

What exactly is the si trim? Does Stillen have a higher power version now or is that something you get through Vortech? Also, just curious, how much mpg do you lose from the SC always spinning? I already get bad mileage because of the 4.08. Figured that could actually improve a bit potentially or not get worse with tt since I would lose the 4.08 gears.

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Works Emotion CR Ultimate - FI CBE w/ 18" resonators - Ecutek - eibach sways - Quaife - FI LTH w/race cats - kw v3 - spl - Topgunz SC - 488whp 398trq

Jayhovah

I can't speak to the SC, but I'd imagine your fuel economy would still be far more dependent on your driving habits than whether there is an SC or TT installed. If I drive like a normal person, I still get OEM MPG (a little better, actually). I am TT though.

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2013 Gun Metallic Sport - Gamma V3 Twin Turbogized
DIY Gamma V3 TT Install * Jayhovah's Gamma V3 TT Install Pic'Z and Vid'Z * DIY: Washer Reservoir for the Boosted

TopgunZ

I see you are currently making Peak whp of 310 and Peak tq of 265.

Here is my dyno. Si trim and E85.

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ROTREX SUPERCHARGER TUNER KITS - $6799/ CUSTOM STILLEN AIR TO AIR KITS -$2100/ 700+ WHP!! WWW.TOPGUNSPEEDWORKS.COM

Jayhovah

That is like the smoothest curve I have ever seen. Seb?

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2013 Gun Metallic Sport - Gamma V3 Twin Turbogized
DIY Gamma V3 TT Install * Jayhovah's Gamma V3 TT Install Pic'Z and Vid'Z * DIY: Washer Reservoir for the Boosted

TopgunZ

Not seb. Thats the beauty of the sc. Its so smooth and predictable.

HOWEVER, i just got off the phone with Seb about my new kit

Again @ Brucelidat...My new kit will come with the Si impeller already installed if you think its worth waiting for.

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ROTREX SUPERCHARGER TUNER KITS - $6799/ CUSTOM STILLEN AIR TO AIR KITS -$2100/ 700+ WHP!! WWW.TOPGUNSPEEDWORKS.COM

brucelidat

Well, I'd have to see what's what when your kit comes out. DO you have an actual company or anything? It's kind of iffy, no offense, to drop 6.5k on a new kit form an individual on the forums. If Seb says it's good, though, that would go a long for reassurance. He's my tuner who has done almost all the work on my car.

When do you think it will happen? I'm in no rush, going to have surgery soon, then I won't even be able to drive for a while since I'll be one-armed for at least a month.

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Works Emotion CR Ultimate - FI CBE w/ 18" resonators - Ecutek - eibach sways - Quaife - FI LTH w/race cats - kw v3 - spl - Topgunz SC - 488whp 398trq

brucelidat

Okay, so the is is an impeller upgrade. Is this something you just buy and it gets replaced during install or do you have to send it our to vortech?

I doubt I would run e85 with the SC. Between my 4.08 gears, the SC, and e85, I'd probably be getting 10mpg which I now we shouldn't care about butt hat's just way too low.

I know mpg depends on your driving habits, but with SC, you're almost always in some amount of boost since it's belt driven. Also, since the power come son gradually, I might even keep my 4.08 gears. With tt, those gears would def be gone and you can stay out of boost easier. The downside is $$$$ and more maintenance. I wihs I cold get a ride in a SC and TT z.

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Works Emotion CR Ultimate - FI CBE w/ 18" resonators - Ecutek - eibach sways - Quaife - FI LTH w/race cats - kw v3 - spl - Topgunz SC - 488whp 398trq

TopgunZ

@ Bruclidat.... You are in a 7AT. When you stomp on the pedal its going to downshift and put you at an instant 5 or 6 psi anyways! Your back end will get squirrely and you will smile.

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ROTREX SUPERCHARGER TUNER KITS - $6799/ CUSTOM STILLEN AIR TO AIR KITS -$2100/ 700+ WHP!! WWW.TOPGUNSPEEDWORKS.COM

TopgunZ

I have sold about 40 A2A kits and have never had a complaint I didn't resolve immediately. From what I know, there are 40 satisfied customers out there.

As the kit develops it will build confidence. Once I post the first dyno and price, it should sell quick.

I will have an official business license before selling them so I am registered with the BBB.

__________________
ROTREX SUPERCHARGER TUNER KITS - $6799/ CUSTOM STILLEN AIR TO AIR KITS -$2100/ 700+ WHP!! WWW.TOPGUNSPEEDWORKS.COM

brucelidat

Okay, sounds good, let me know if there's an initial discount or group buy or anything. It would be nice to not have to buy a Stillen kit then make a bunch of changes. Seb is super respected in this community, if you get him recommending it, it will make a big difference.

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Works Emotion CR Ultimate - FI CBE w/ 18" resonators - Ecutek - eibach sways - Quaife - FI LTH w/race cats - kw v3 - spl - Topgunz SC - 488whp 398trq

TBatt

TopgunZ is a very honest guy. I wouldn't hesitate to buy his kit. I've been working with him for the past year and he is very good at what he does.

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RJM pedal, Hotchkis Sway Bars, FI TDX, FOG Light, Z1 Slotted Drilled rotors, Stillen SC, Quaife ATB, Z1 Oil cooler, AEM Gauge Set, Galeforce gauge mount, Avant Garde M590 Hypersilver w/RE-11, TopgunZ A2A kit., ECUtek tuned by Seb: ROLL TIDE!

Jayhovah

Topz is gonna put still out of business... or, at least, ruin their 370z SC sales.

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2013 Gun Metallic Sport - Gamma V3 Twin Turbogized
DIY Gamma V3 TT Install * Jayhovah's Gamma V3 TT Install Pic'Z and Vid'Z * DIY: Washer Reservoir for the Boosted